Patents by Inventor Kunihiko Ishizaka

Kunihiko Ishizaka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of stabilizing a steel making slag
    Patent number: 4655831
    Abstract: A method of stabilizing a steel making slag composed mainly of dicalcium silicate is disclosed, which comprises adding a boron-containing mineral obtained by adjusting an amount of crystal water to 4-12% by weight, whereby the powdering of the slag is prevented in the cooling.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: April 7, 1987
    Assignees: Kawasaki Steel Corporation, Kawatetsu Mining Co., Ltd.
    Inventors: Kunihiko Ishizaka, Fumio Sudo, Akira Seki, Yoshio Aso